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A sample of liquid in a thermally insu...

A sample of liquid in a thermally insulated constant ( a calorimetre ) is strirred for 2 hr. by a mechancal linkage to motor in the surrounding ,for this procees :

A

`wlt0,q=0,DeltaU=0`

B

`wgt0ggt0,DeltaUgt0`

C

`wlt0,qgt0,DeltaU=0`

D

`wgt0q=0,DeltaUgt0`

Text Solution

Verified by Experts

The correct Answer is:
D
`q=0, DeltaU=q+w`
`wgt0`
so `DeltaUgt0`
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